葡萄酒中的铅同位素比值是产地评估的良好指标吗？
Is a Lead Isotope Ratios in Wine Good Marker for Origin Assessment?
作者信息
Đurđić Slađana, Stanković Vesna, Ražić Slavica, Mutić Jelena
机构信息
Department of Analytical Chemistry, Faculty of Chemistry, University of Belgrade, Belgrade, Serbia.
Department of Chemistry, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Belgrade, Serbia.
出版信息
Front Chem. 2021 Oct 4;9:746695. doi: 10.3389/fchem.2021.746695. eCollection 2021.
Lead isotope ratio pattern (Pb/Pb, Pb/Pb, Pb/Pb, Pb/Pb, and Pb/Pb) was analyzed in 59 samples of Serbian wine, from four geographical regions. By utilization of powerful inductively coupled plasma mass spectrometry (ICP-QMS), lead isotope ratios were used as unique "", when combined with multivariate methods of analysis (Principal Component Analysis), provided information on the geographical origin of wine. In validation of ICP- QMS method and quantitative analysis, the certified reference material NIST SRM 981 was employed to test the mass-bias correction and thallium isotopes Tl and Tl (NIST SRM 997) as an internal standard. The obtained results were discussed in correlation with the corresponding values of LIRs of different European and Australian wines. In addition, the impact of anthropogenic Pb from different sources on the total Pb isotopic composition in Serbian wines was analyzed too. On the other side, the obtained values of Pb content were compared with the applicable health safety standards, according to the International Code of Oenological Practices.
对来自塞尔维亚四个地理区域的59个葡萄酒样本的铅同位素比率模式（Pb/Pb、Pb/Pb、Pb/Pb、Pb/Pb和Pb/Pb）进行了分析。通过使用强大的电感耦合等离子体质谱仪（ICP-QMS），铅同位素比率被用作独特的“指纹”，当与多变量分析方法（主成分分析）相结合时，可提供有关葡萄酒地理来源的信息。在ICP-QMS方法的验证和定量分析中，使用了经过认证的参考物质NIST SRM 981来测试质量偏差校正，并使用铊同位素Tl和Tl（NIST SRM 997）作为内标。将所得结果与不同欧洲和澳大利亚葡萄酒的铅同位素比率（LIRs）相应值进行了相关性讨论。此外，还分析了不同来源的人为铅对塞尔维亚葡萄酒中总铅同位素组成的影响。另一方面，根据国际酿酒实践规范，将所得铅含量值与适用的健康安全标准进行了比较。
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